Ive used the F1 to haul out an elk and it handles the load very well, but I wouldnt want to hunt with one as a day hunting pack. There are lighter load hauling packs that work as well like the Kuiu Pro series.
I've run the F1 frame with the J-type zip on dry bag since 2017. This Vapor is the high end way of what I am accomplishing with the J-bag. I use it every hunt. I don't find it heavy at all.